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 A184458 Half the number of (n+1)X(n+1) binary arrays with equal numbers of majority one 2X2 subblocks and majority zero 2X2 subblocks 0
 3, 35, 3090, 1181303, 1925704384, 13061240432092, 364710845961492808, 41619801566809753837565, 19314484317434151178477352552 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A184467 LINKS Table of n, a(n) for n=1..9. EXAMPLE Some solutions for 3X3 ..0..0..0....0..1..0....0..0..0....0..1..0....0..0..1....0..1..1....0..1..0 ..1..1..0....1..0..1....1..0..1....0..1..0....0..1..1....1..0..1....1..0..1 ..0..1..0....0..1..0....1..1..1....0..1..0....1..0..0....1..0..0....1..0..1 ... ...E..M.......E..E.......M..M.......E..E.......M..P.......E..P.......E..E... ...P..E.......E..E.......P..P.......E..E.......E..E.......E..M.......E..E... CROSSREFS Sequence in context: A068726 A263512 A093583 * A132940 A132941 A068002 Adjacent sequences: A184455 A184456 A184457 * A184459 A184460 A184461 KEYWORD nonn AUTHOR R. H. Hardin Jan 15 2011 STATUS approved

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Last modified May 20 06:19 EDT 2024. Contains 372703 sequences. (Running on oeis4.)